RHS 101.6x50.8x7.95 CISC · Weight & Dimensions

CISC, cold-formed sections · Rectangular Hollow Section

Rectangular Hollow Sections (RHS) are tubular profiles with excellent torsional resistance and aesthetic appeal. Used for columns, trusses, and exposed structural elements.

Also known as: PTR 101.6x50.8 (México) · Caño estructural 101.6x50.8 (Argentina)

The RHS 101.6x50.8x7.95 steel profile weighs 15.8 kg/m (10.59 lb/ft), has a depth of 101.6 mm (4.00 in), flange width 50.8 mm (2.00 in). Cross-sectional area: 2,007.59 mm². Moment of inertia Ix = 221.449 cm⁴, Iy = 71.43 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	101.6 mm	4.00 in
Width (b)	50.8 mm	2.00 in
Thickness (t)	8.0 mm	0.31 in
Fillet radius (r)	15.9 mm	0.63 in
Weight	15.8 kg/m	10.59 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,007.59 mm²	3.112 in²
Moment of inertia (Ix)	221.45 cm⁴	5.32 in⁴
Moment of inertia (Iy)	71.43 cm⁴	1.72 in⁴
Elastic section modulus (Sx)	43.59 cm³	2.660 in³
Elastic section modulus (Sy)	28.12 cm³	1.716 in³
Plastic section modulus (Zx)	58.99 cm³	3.600 in³
Plastic section modulus (Zy)	35.56 cm³	2.170 in³
Radius of gyration (rx)	3.32 cm	1.308 in
Radius of gyration (ry)	1.89 cm	0.743 in